Universität Regensburg, Institut für Anorganische Chemie, 93040, Regensburg, Germany.
Institute of Chemistry, St. Petersburg State University, Universitetskaya nab. 7/9, 199034, St. Petersburg, Russia.
Angew Chem Int Ed Engl. 2017 Oct 2;56(41):12783-12787. doi: 10.1002/anie.201707436. Epub 2017 Sep 5.
We report on the synthesis and characterization of mixed pnictogenylboranes. The substitution of the Lewis base SMe in (OC) W-PH BH -SMe (2) by different pnictogenylboranes ER BH -LB (E=P, As, Sb) leads to the Lewis acid/base stabilized butane analogue (OC) W-PH BH ER BH -LB (3 a, b: E=P; R=H, SiMe ; LB=NMe ; 4 a, b: E=As; R=H, SiMe ; LB=NMe ; 5: E=Sb; R=SiMe ; LB=NHC ). All of these compounds were characterized by single-crystal X-ray structure analysis, mass spectrometry, NMR, and IR spectroscopy. In addition, the very unstable phosphanylborane chain PH BH PH BH -NMe (1) was synthesized. DFT calculations provide insight into the thermodynamics of these reactions.
我们报告了混合杂化硼烷的合成与表征。路易斯碱 SMe 在 (OC) W-PH BH -SMe（2）中的取代，通过不同的杂化硼烷 ER BH -LB（E=P、As、Sb），得到路易斯酸碱稳定的丁烷类似物 (OC) W-PH BH ER BH -LB（3a、b：E=P；R=H、SiMe；LB=NMe；4a、b：E=As；R=H、SiMe；LB=NMe；5：E=Sb；R=SiMe；LB=NHC）。所有这些化合物都通过单晶 X 射线结构分析、质谱、NMR 和 IR 光谱进行了表征。此外，还合成了非常不稳定的膦基硼烷链 PH BH PH BH -NMe（1）。DFT 计算提供了对这些反应热力学的深入了解。
